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package LatexIndent::FileContents;
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# See http://www.gnu.org/licenses/.
#
# Chris Hughes, 2017
#
# For all communication, please visit: https://github.com/cmhughes/latexindent.pl
use strict;
use warnings;
use LatexIndent::Tokens qw/%tokens/;
use LatexIndent::GetYamlSettings qw/%masterSettings/;
use LatexIndent::Switches qw/$is_t_switch_active $is_tt_switch_active/;
use LatexIndent::LogFile qw/$logger/;
use Data::Dumper;
use Exporter qw/import/;
our @EXPORT_OK = qw/find_file_contents_environments_and_preamble/;
our @ISA = "LatexIndent::Document"; # class inheritance, Programming Perl, pg 321
our $fileContentsCounter;
sub find_file_contents_environments_and_preamble{
my $self = shift;
# store the file contents blocks in an array which, depending on the value
# of indentPreamble, will be put into the verbatim hash, or otherwise
# stored as children to be operated upon
my @fileContentsStorageArray;
# fileContents environments
$logger->trace('*Searching for FILE CONTENTS environments (see fileContentsEnvironments)') if $is_t_switch_active;
$logger->trace(Dumper(\%{$masterSettings{fileContentsEnvironments}})) if($is_tt_switch_active);
while( my ($fileContentsEnv,$yesno)= each %{$masterSettings{fileContentsEnvironments}}){
if($yesno){
$logger->trace("looking for $fileContentsEnv environments") if $is_t_switch_active;
# the trailing * needs some care
if($fileContentsEnv =~ m/\*$/){
$fileContentsEnv =~ s/\*$//;
$fileContentsEnv .= '\*';
}
my $fileContentsRegExp = qr/
(
\\begin\{
$fileContentsEnv
\}
)
(
.*?
)
(
\\end\{$fileContentsEnv\}
\h*
)
(\R)?
/sx;
while( ${$self}{body} =~ m/$fileContentsRegExp/sx){
# create a new Environment object
my $fileContentsBlock = LatexIndent::FileContents->new( begin=>$1,
body=>$2,
end=>$3,
name=>$fileContentsEnv,
linebreaksAtEnd=>{
begin=>0,
body=>0,
end=>$4?1:0,
},
modifyLineBreaksYamlName=>"filecontents",
);
# give unique id
$fileContentsBlock->create_unique_id;
# the replacement text can be just the ID, but the ID might have a line break at the end of it
$fileContentsBlock->get_replacement_text;
# count body line breaks
$fileContentsBlock->count_body_line_breaks;
# the above regexp, when used below, will remove the trailing linebreak in ${$self}{linebreaksAtEnd}{end}
# so we compensate for it here
$fileContentsBlock->adjust_replacement_text_line_breaks_at_end;
# store the fileContentsBlock, and determine location afterwards
push(@fileContentsStorageArray,$fileContentsBlock);
# log file output
$logger->trace("FILECONTENTS environment found: $fileContentsEnv");
# remove the environment block, and replace with unique ID
${$self}{body} =~ s/$fileContentsRegExp/${$fileContentsBlock}{replacementText}/sx;
$logger->trace("replaced with ID: ${$fileContentsBlock}{id}") if $is_tt_switch_active;
}
} else {
$logger->trace("*not* looking for $fileContentsEnv as $fileContentsEnv:$yesno");
}
}
# determine if body of document contains \begin{document} -- if it does, then assume
# that the body has a preamble
my $preambleRegExp = qr/
(.*?)
(\R*\h*)? # linebreaks at end of body into $2
\\begin\{document\}
/sx;
my $preamble = q();
my $needToStorePreamble = 0;
# try and find the preamble
if( ${$self}{body} =~ m/$preambleRegExp/sx and ${$masterSettings{lookForPreamble}}{${$self}{fileExtension}}){
$logger->trace("\\begin{document} found in body (after searching for filecontents)-- assuming that a preamble exists") if $is_t_switch_active ;
# create a preamble object
$preamble = LatexIndent::Preamble->new( begin=>q(),
body=>$1,
end=>q(),
name=>"preamble",
linebreaksAtEnd=>{
begin=>0,
body=>$2?1:0,
end=>0,
},
afterbit=>($2?$2:q())."\\begin{document}",
modifyLineBreaksYamlName=>"preamble",
);
# give unique id
$preamble->create_unique_id;
# get the replacement_text
$preamble->get_replacement_text;
# log file output
$logger->trace("preamble found: preamble") if $is_t_switch_active;
# remove the environment block, and replace with unique ID
${$self}{body} =~ s/$preambleRegExp/${$preamble}{replacementText}/sx;
$logger->trace("replaced with ID: ${$preamble}{replacementText}") if $is_tt_switch_active;
# indentPreamble set to 1
if($masterSettings{indentPreamble}){
$logger->trace("storing ${$preamble}{id} for indentation (see indentPreamble)");
$needToStorePreamble = 1;
} else {
# indentPreamble set to 0
$logger->trace("NOT storing ${$preamble}{id} for indentation -- will store as VERBATIM object (because indentPreamble:0)") if $is_t_switch_active;
$preamble->unprotect_blank_lines;
${$self}{verbatim}{${$preamble}{id}} = $preamble;
}
} else {
${$self}{preamblePresent} = 0;
}
# loop through the fileContents array, check if it's in the preamble
foreach(@fileContentsStorageArray){
my $indentThisChild = 0;
# verbatim children go in special hash
if($preamble ne '' and ${$preamble}{body} =~ m/${$_}{id}/){
$logger->trace("filecontents (${$_}{id}) is within preamble");
# indentPreamble set to 1
if($masterSettings{indentPreamble}){
$logger->trace("storing ${$_}{id} for indentation (indentPreamble is 1)");
$indentThisChild = 1;
} else {
# indentPreamble set to 0
$logger->trace("Storing ${$_}{id} as a VERBATIM object (indentPreamble is 0)");
${$self}{verbatim}{${$_}{id}}=$_;
}
} else {
$logger->trace("storing ${$_}{id} for indentation (${$_}{name} found outside of preamble)");
$indentThisChild = 1;
}
# store the child, if necessary
if($indentThisChild){
$_->remove_leading_space;
$_->get_indentation_settings_for_this_object;
$_->tasks_particular_to_each_object;
push(@{${$self}{children}},$_);
# possible decoration in log file
$logger->trace(${$masterSettings{logFilePreferences}}{showDecorationFinishCodeBlockTrace}) if ${$masterSettings{logFilePreferences}}{showDecorationFinishCodeBlockTrace};
}
}
if($needToStorePreamble){
$preamble->dodge_double_backslash;
$preamble->remove_leading_space;
$preamble->find_commands_or_key_equals_values_braces if($masterSettings{preambleCommandsBeforeEnvironments});
$preamble->tasks_particular_to_each_object;
push(@{${$self}{children}},$preamble);
}
return;
}
sub create_unique_id{
my $self = shift;
$fileContentsCounter++;
${$self}{id} = "$tokens{filecontents}$fileContentsCounter$tokens{endOfToken}";
return;
}
sub tasks_particular_to_each_object{
my $self = shift;
# search for environments
$self->find_environments;
# search for ifElseFi blocks
$self->find_ifelsefi;
# search for headings (part, chapter, section, setc)
$self->find_heading;
# search for commands and special code blocks
$self->find_commands_or_key_equals_values_braces_and_special;
}
1;
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